Improvement in harvester-cutters



- 2Sheets.--Shget1. S. B'. FISK.

Improvement in Harvester-Cutters. No. 131,869. Patented Oct. 1,1872.

2 Sheets--Sheet 2.

s. B. FISK.

Improvement in Harvester-Cutters No. 131,869. Patented 01.1.,1872.

UNITED STATES PATENT. Drrron.

SILAS B. RISK, OF RISING sun, INDIANA.

IMPROVEMENT IN HARVESTER-CUTTERS.

Specification forming part of Letters Patent No. 131,869, dated October1, 1872.

following is a specification:

My invention relates to the method of attachin g the cutters ofharvesters to the cutterbar and consists'in forming the shanks of thecutters with beveled edges, which are made to slide into correspondingrecesses in the cutter-bar, the cutter-bar and cutters being securelyfastened together by a wedge-shaped bar, which is slid into acorresponding groove made in the upper facesof the cutter-barandcutters. r

Description of the Accompanying Drawing. Figure 1 represents a top viewof the cutter:

bar and cutters embodying myinvention. Fig.

2 represents detached views of the cutters,

cutter-bar, and wedge-shaped bar, by means of which the cutter-bar andcutters are fastened together.

, General Description.

B is the cutter-bar that holds the sections,

and is formed with beveled notches d (l on the bar, having also agroove, 0, on top which comes opposite the one on the bar. 0 is thefastenin g-rod, which slips into the bev-elgroove on top, having alsobevel-edges, and is, put in from the end of the bar and securely fastensthe sections in place. -By taking out'this rod any section can be-removed for the purpose of replacing it witha new one or for thepurpose of grinding. w

-I am aware that the cutters of harvesters have heretofore been attachedto the cutterbar by inserting the beveled shanks of the cutters intocorresponding recesses in the cutter-bar, the cutter-bar and cuttersbeing held together by a bar provided with recesses and projections,thelatter entering into notches in the cutters, and the bar having itssides parallel and a pin on its lower face to enter a corresponding holein the cutter-bar, and I therefore lay no claim to such an invention;but

What I do claim as new, and desire to se cure by Letters Patent, is-

The cutters A A, provided with beveled edges or a and grooves e 0 acrosstheir shanks, in combination with the cutter-bar B, having a taperinggroove, 0, to receive the wedgeshaped fastening-bar G, which also passesthrough the "grooves c c of the shanks of the cutters, as and for thepurpose set forth.

SILAS B. FISK.

Witnesses:

Gnonen B. GIBsoN, J OSEPH J. MERRILL.

